Universidade do Estado do Rio de Janeiro, Departamento de Ecologia, Laboratório de Ecologia de Vertebrados, Rio de Janeiro, RJ, Brasil.
Fundação Centro Universitário Estadual da Zona Oeste, Unidade de Biologia, Rio de Janeiro, RJ, Brasil.
Braz J Biol. 2021 Oct-Dec;81(4):1050-1053. doi: 10.1590/1519-6984.234318. Epub 2021 Nov 30.
The number of individuals with empty stomachs in a population (i.e. the proportion of individuals "running on empty") can be used as a simple index of instantaneous energy balance of some organisms such as lizards and fishes. In this study, we aimed to analyze the proportion of empty stomachs in 16 populations of five cnemidophorine species (Glaucomastix abaetensis, Ameivula ocellifera, Glaucomastix littoralis, Contomastix lacertoides and Ameivula nativo) along approximately 5,000 km the Brazilian coast. A total of 550 individuals had their stomach contents removed and identified in the laboratory. Our results showed that the proportion of individuals "running on empty" varied from 0 to 11.1% among the different populations and species. These proportions are suggestive that the five studied species would be in an overall positive energy balance at the time of the study.
人群中空腹个体的数量（即“空腹”个体的比例）可用作某些生物体（如蜥蜴和鱼类）瞬时能量平衡的简单指标。在这项研究中，我们旨在分析巴西沿海约 5000 公里范围内的 5 种南美蜥属物种（Glaucomastix abaetensis、Ameivula ocellifera、Glaucomastix littoralis、Contomastix lacertoides 和 Ameivula nativo）的 16 个种群中空腹个体的比例。共有 550 只个体的胃内容物在实验室中被取出并鉴定。我们的结果表明，不同种群和物种之间空腹个体的比例从 0 到 11.1%不等。这些比例表明，在研究期间，所研究的五个物种总体上处于正能量平衡状态。
